Doctor Who - Four to Doomsday

Reptilian aliens wreak havoc when the Tardis must make a surprise landing in this memorable DOCTOR WHO yarn. The fifth doctor (Peter Davison) and his assistant (Janet Fielding) stop on their way to Heathrow Airport on a dangerous ship. The ship appears to vacated, but is soon discovered to be the home to frog-like aliens who seek to end human life on Earth.